Scraper



UNITE STATS JOSEPH PLENTER, 01?, mm, MICHIGAN" Application'i iled July '3, 191-9, Serial No. 308,433.

To all whom it may concern:

Be it known that I, JOSEPH PnnN rER, a

citizen of Hungary, residing'at Flint, in the county of Genesee and State of Michigan,

have invented new and useful Improvements in a Scraper, of which the following is a specification;

1 This invention relates to traction-operated scrapers-or scoops, the object being to provide a scoop or scraper which is capable of beingdowered for filling and of being raised by power furnishedby the traction wheels of-the machine. v I

' Another-object is the provision ofa ma: chine of this character having a vertically movable scoop 0r scraper guide'd in the frame and a drum forhoisting the scoop, novel means beingprovided'for locking and releasing the 'drumto and from its shaft, the latter being driven from thetraction wheels of the machine. Another-objectisthe provision of means included in the drum driving means, which compensates for the'turning' of the machine, so that :one end" ofthe drum carrying shaft will be automatically released when the shaft'is making a turn.

' Other objects andadvantages of'the inventionwill appear asthe following descrip tionis; read in connection with the accompa'nyi'ng-drawings. 1

a I Inthe drawings:

iF'gureil isaplan view of a machine emying the present invention;

- Figure 2; is a side elevation'with one wheel removed and thecover plate of one ofthe' driving wheels removedto show the ratchet mechanism; Figure 3 isa longitudinal sectional View. Figuredisa transverse section taken on aline with the hoisting shaft. Figure 5/is a similar view taken-0n a line with-the axles andflooking toward the rear of Ithe'machine; V i

Figure 6.is a detail section showing the ratchet releasing mechanism for dumping the scoop. V Fi-gnre' 7 is a similar view of the ratchet mechanism for closing thescoop.

-Referring to the. drawings in detail, wherein like characters of reference denote corresponding parts, the machine embodies a frame 10, which consists of side members and end members anda crossmember iconnefotedto and located intermediate the ends "load.

SGRAI5ER. v

Specification of Letters Iatent; Patented'Apr, 4, 19,22.

Renewedseptember lfi, 1921. Serial No. 501,182.

of the-side members, the said cross member being indicated at 11. Extending from the sidemember of the, frame are stub axles 12,

upon which are mounted tionwheels 13," Q

the "latter supporting the frame. Connected to the forward end of the frameis atongue 14. It is, ofcourse, obviousthat this tongue H may have substituted therefor suitable coufl-f pling means for connectionwith a tractor; lvlountediupon the opposite end-of the frame is-a seat 15, for the convenience of the oper-' ator. Mounted for-vertical movement in the frame 10,"-is' a sco'op l6, th'e latter -com-' prising'side plates 17-, anend platelS anda bar 19' connecting the forward ends of; the side members; This bar'is provided with a front cutting edge, which is adaptedlto dig into the surface ofthe ground-for'filling-the scoop. Thebottomof; the scoop is formed by a pair of hinged plates '20, one edge of which is 'hingedl'yf secured to each of the side plates '17, as shownat- 21. i p 1 Mounted in bearings .22, carried-by each of the sidepla-tes 17," is arotatable shaft 23,

this shaft being connected to each of the hingedpIatesQOby means 'of a rope or chain 24. One end of this chain is connected to the bar 19 and passes throughguides'25 carried I by the plates-2O and has its opposite end connected to and wound upon-the shaft 23,

The'shaft23 is held against rotation through i th'eimedium of "a pawl '26,'which is pivotally mounted upon'one of the side-plates'l7 and engages-aratchet'wheel 27 fast [upon'the shaft23; This pawl-is urged into 'engage ment with the ratchet wheel bymeans' of --a spring and is disengaged through the medium" ofa hand-lever 28," which "is mounted Secured upon the shaft'23 is an additional ratchet wheel 34:, which is straddled by the bifurcated end'of'ahand lever 35. Mounted within the bifurcated end of the lever 35 is a pawl 36, and this pawl is connected through the medium of a rod 37 to a pivoted hand grip carried by a lever 39. A spring 40 surrounding the rod 37 and positioned within a bracket 41 carried by the lever 35, acts to normally hold the pawl 36 from engagement with the ratchet wheel 34. When it is desired to raise the hinged plates 20 to close the bottom of the scoop, the lever 35 is operated with the dog 36 in en agement with the ratchet wheel 34, which looks the lever to the shaft when the latter is moved in one direction and closes the bottom of the scoop through. the medium of the flexible connection 24.

The scoop 16, is mounted for vertical movement within the frame, and for this purpose there is provided upon each end of the scoop a pair of' substantially V-shaped guide rods 42. These rods operate in guides 43, carried by the frame.

Mounted in the frame 10 at the rear of the scoop 16, is a shaft 44, the latter being mounted for free rotary movement within bearings carried by the frame. Loosely mounted upon the shaft 44, is a drum 45, the latterhaving wound thereon a chain or ca ble 46. This chain or cable passes over a guide pulley 47, which is mounted upon a shaft 48, and is threadedthrough a pair of blocks 49 and 50. The first mentioned block is suitably supported above the scoop, while the block 50 is secured to the cross bar 31.

v The drum 45 is held against rotation through the medium of a dog 51, the latter being operated by a hand lever 52, connected to the dog through the medium of rods 53 and a pivoted lever 54. This dog engages a ratchet wheel 55, secured to one face of the drum, while the opposite face ofthe drum has secured thereto a tapered clutch member 56. r The member 56 is normally engaged by a brake band 57,- which is controlled by a tapered sleeve 58, mounted for sliding movement on the shaft 44. This sleeve engages an arm 59, which is pivotally secured toa disc 60, which disc issplined upon the shaft44. The sleeve 58 has secured thereto a lever 61, one endof which is pivotally securedto the cross bar'll, as indicated at 62, while its opposite end is pivotally secured to a foot lever 63, located within convenient reach of the operator. When it is desired to release the drum, the dog 51 is disengaged from the ratchet wheel 55 by operating the lever 52. Pressure upon the lever 63 will then slide the sleeve 58 into engagement with the arm 59 and release the drum 45, which will permit of a downward sliding movement of the scoop 16. The speed of this movement may be controlled by pressure upon the lever 63.

Secured to each of the traction wheels 13, is a gear 64, the latter engaging idlers 65,

mounted upon short shafts 66, carried by the frame 10. The shaft 44 has each end extended through the frame 10, and has loosely mounted thereon a gear 67 The outer faces of the gears 67 are recessed, and mounted within. the recesses of each of these gears are pivoted dogs 68, the latter engaging ratchet teeth 69, formed upon the extremities of the shaft 44. If desired, the depressions in the gears 68 may be covered by a plate 70, so as to exclude dust and dirt.

By this means a forwardmovement of the machine willrotate the shaft 44, which has normally locked thereon the drum 45, so that the scoop will be raised by power furnished by the forward movement of the machine. The ratchet connection of the gears 67 of the shaft 44 compensates for turning the'machine, so that one wheel only will drive the shaft upon a turn. 5

It is believed that when the foregoing de scription is read in connection with the accompanying drawings, the construction, operation and advantages of the invention will be apparent.

V The invention is susceptible of variouschanges in its form, proportions and minor details of constructlon and the right is herein reserved to make such changes as prop erly fall within the scope of the appended claims. w

Having described the invention, what is claimed is: i

1. A machine comprising awheel supported frame, a scoop mounted for vertical movement therein, a shaft mounted for rotation in said frame, means "connecting the wheels 7 of the machine and'said shaft for rotating the latter, a drum loosely mounted upon the shaft, a flexible element connecting the scoop and drum, whereby when the latteris ro-j; tated the scoop will be raised, means including a slidably mounted brake band car drum to the shaft and means for releasin the brake band to'lower the scoop.

2..A machine comprising a wheel supported frame, a scoop mounted for-vertical movement therein, a shaft mounted for rotation in said frame, means connecting the wheels of the machine and said shaft for rotating the latter, a drum loosely mounted .ried by the shaft for normally locking the upon said shaft, a flexible element connect-- ing the scoop and drum, whereby when the latter is rotated the scoop will be raised, meansincluding a slidably mounted brake band carried by the shaft for normallylocking the drum to the shaft and means including a tapered sleeve mounted for sliding movement upon the shaft for releasing the brake band to lower the scoop.

3. A machine comprising a wheel supported frame, a scoop mounted for'vertical movement therein, hoisting means operated by the wheels of the machine for raising the upon the opposite end of said drum and a laterally movable cam member for controlling the brake band.

ered to a filling position, a hinged bottom 5. A machine comprising a Wheel supported frame, a scoop mounted for vertical movement therein and capable-of being lowfor the scoop, a shaft mounted for-rotation upon the scoop and connected to the hinged bottom and a ratchet mechanism upon the shaft for controlling the position of the bot-' tom.

- In testimony whereof I JOSEPH PLENTER.

aflix my signature. V 

